Generation of transfer functions with stochastic search techniques
Proceedings of the 7th conference on Visualization '96
Design galleries: a general approach to setting parameters for computer graphics and animation
Proceedings of the 24th annual conference on Computer graphics and interactive techniques
VIS '97 Proceedings of the 8th conference on Visualization '97
Semi-automatic generation of transfer functions for direct volume rendering
VVS '98 Proceedings of the 1998 IEEE symposium on Volume visualization
A fast volume rendering algorithm for time-varying fields using a time-space partitioning (TSP) tree
VIS '99 Proceedings of the conference on Visualization '99: celebrating ten years
Proceedings of the conference on Visualization '01
Texture hardware assisted rendering of time-varying volume data
Proceedings of the conference on Visualization '01
Real-time decompression and visualization of animated volume data
Proceedings of the conference on Visualization '01
Optical Models for Direct Volume Rendering
IEEE Transactions on Visualization and Computer Graphics
The Transfer Function Bake-Off
IEEE Computer Graphics and Applications
Differential volume rendering: a fast volume visualization technique for flow animation
VIS '94 Proceedings of the conference on Visualization '94
Multi-Dimensional Transfer Functions for Interactive 3D Flow Visualization
PG '04 Proceedings of the Computer Graphics and Applications, 12th Pacific Conference
Visibility Culling for Time-Varying Volume Rendering Using Temporal Occlusion Coherence
VIS '04 Proceedings of the conference on Visualization '04
A Multi-Layered Image Cache for Scientific Visualization
PVG '03 Proceedings of the 2003 IEEE Symposium on Parallel and Large-Data Visualization and Graphics
Real-Time Volume Rendering of Time-Varying Data Using a Fragment-Shader Compression Approach
PVG '03 Proceedings of the 2003 IEEE Symposium on Parallel and Large-Data Visualization and Graphics
High Dimensional Direct Rendering of Time-Varying Volumetric Data
Proceedings of the 14th IEEE Visualization 2003 (VIS'03)
Intelligent Feature Extraction and Tracking for Visualizing Large-Scale 4D Flow Simulations
SC '05 Proceedings of the 2005 ACM/IEEE conference on Supercomputing
GI '07 Proceedings of Graphics Interface 2007
Importance-Driven Time-Varying Data Visualization
IEEE Transactions on Visualization and Computer Graphics
Visibility-driven transfer functions
PACIFICVIS '09 Proceedings of the 2009 IEEE Pacific Visualization Symposium
Interactive Transfer Function Design Based on Editing Direct Volume Rendered Images
IEEE Transactions on Visualization and Computer Graphics
Time histograms for large, time-dependent data
VISSYM'04 Proceedings of the Sixth Joint Eurographics - IEEE TCVG conference on Visualization
Simultaneous classification of time-varying volume data based on the time histogram
EUROVIS'06 Proceedings of the Eighth Joint Eurographics / IEEE VGTC conference on Visualization
Stroke-based transfer function design
SPBG'08 Proceedings of the Fifth Eurographics / IEEE VGTC conference on Point-Based Graphics
Visualization of time-varying volumetric data using differential time-histogram table
VG'05 Proceedings of the Fourth Eurographics / IEEE VGTC conference on Volume Graphics
Semi-automatic time-series transfer functions via temporal clustering and sequencing
EuroVis'09 Proceedings of the 11th Eurographics / IEEE - VGTC conference on Visualization
A new approach to remote visualization of large volume data
ACM SIGGRAPH Computer Graphics
A preview and exploratory technique for large-scale scientific simulations
EG PGV'11 Proceedings of the 11th Eurographics conference on Parallel Graphics and Visualization
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The selection of an appropriate global transfer function is essential for visualizing time-varying simulation data. This is especially challenging when the global data range is not known in advance, as is often the case in remote and in-situ visualization settings. Since the data range may vary dramatically as the simulation progresses, volume rendering using local transfer functions may not be coherent for all time steps. We present an exploratory technique that enables coherent classification of time-varying volume data. Unlike previous approaches, which require pre-processing of all time steps, our approach lets the user explore the transfer function space without accessing the original 3D data. This is useful for interactive visualization, and absolutely essential for in-situ visualization, where the entire simulation data range is not known in advance. Our approach generates a compact representation of each time step at rendering time in the form of ray attenuation functions, which are used for subsequent operations on the opacity and color mappings. The presented approach offers interactive exploration of time-varying simulation data that alleviates the cost associated with reloading and caching large data sets.